English verb conjugation
CAN TEACH

Irregular verb: teach - taught - taught

Affirmation

Simple form	V-ing form
I can teach you can teach she can teach we can teach you can teach they can teach	I can be teaching you can be teaching she can be teaching we can be teaching you can be teaching they can be teaching
Perfect	V-ing perfect
I can have taught you can have taught she can have taught we can have taught you can have taught they can have taught	I can have been teaching you can have been teaching she can have been teaching we can have been teaching you can have been teaching they can have been teaching

Negation

Simple form	V-ing form
I can't teach you can't teach she can't teach we can't teach you can't teach they can't teach	I can't be teaching you can't be teaching she can't be teaching we can't be teaching you can't be teaching they can't be teaching
Perfect	V-ing perfect
I can't have taught you can't have taught she can't have taught we can't have taught you can't have taught they can't have taught	I can't have been teaching you can't have been teaching she can't have been teaching we can't have been teaching you can't have been teaching they can't have been teaching

Interrogative form

Simple form	V-ing form
can I teach? can you teach? can she teach? can we teach? can you teach? can they teach?	can I be teaching? can you be teaching? can she be teaching? can we be teaching? can you be teaching? can they be teaching?
Perfect	V-ing perfect
can I have taught? can you have taught? can she have taught? can we have taught? can you have taught? can they have taught?	can I have been teaching? can you have been teaching? can she have been teaching? can we have been teaching? can you have been teaching? can they have been teaching?

Interro-negative form

Simple form	V-ing form
can't I teach? can't you teach? can't she teach? can't we teach? can't you teach? can't they teach?	can't I be teaching? can't you be teaching? can't she be teaching? can't we be teaching? can't you be teaching? can't they be teaching?
Perfect	V-ing perfect
can't I have taught? can't you have taught? can't she have taught? can't we have taught? can't you have taught? can't they have taught?	can't I have been teaching? can't you have been teaching? can't she have been teaching? can't we have been teaching? can't you have been teaching? can't they have been teaching?